Firstly use VCDGear to extract the .mpg file out of the .bin file. You can download it from
http://www.vcdgear.com It is free, and excellent.
Once you have done that, you need some DVD authoring software. Free ones are few and far between. I use ULEAD Movie Factory 3, which is good, but not free. If you only have a couple to make you can use the trial versions. I have seen somewhere (but i've forgotten), some DVD authoring software that authors DVDs, but will only accept DVD format video. If that is the case, download TMPGenc (
http://www.tmpgenc.net/) They do a free version, and a not-so-free Plus version, but both convert video to DVD format.
HTH anyway.